Thursday 1 May 2014

ALCOHOL BREATHALYZER CIRCUIT

amazing device
The alcohol breathalyzer circuit using 8051 microcontroller which outputs the blood alcohol content (BAC) from the breath. The BAC is displayed in percentage on a 3 digit seven segment display. The microcontroller used if AT89S51 which belongs to the 8051 family and the alcohol sensor is MQ135 gas
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